Small arm comprising a striker sliding in a breech bolt



I. DECLAYE.

SMALL ARM COMPRISING A STRIKER SLIDING IN A BREECH BOLT.

APPLICATION FILED SEPT. 9, I920.

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I. DECLAYE. SMALL ARM COMPRISING A STRIKER SLIDING IN A BREECH BOLT.

APPLICATION FILED SEPT. 9, I920. 1,428,836.

Patented July 25, 1922.

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JOSEPH DECLAYE, 0F LIEGE, BELGIUM.

SMALL ARM COMPRISING A STEIKER SLIDING IN A BEE-EOE BOLT.

Specification of Letters Patent.

Patented 1 uly 25, 11922.

Application filed. September 9, 1920. Serial No. 409,174.

To all whom it may concern."

Be it known that I, Josnrrr DEGLAYE, a subject of the King of Belgium, and resident of Liege, 32 Rue Adolphe Borgnet, Belgium, have invented certain new and useful Improvements in or Relating to Small Arms Comprising a Striker Sliding in a Breech Bolt; and I do hereby declare the follow'in to be a full, clear, and exact description 0 the invention, such as Will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked therein, which form a part of this specification.

This invention relates to small-arms comprising a striker sliding in a breech bolt for rim fire cartridges.

The invention relates more particularly to an arrangement of the front part of a breech bolt and accomplishes the following advantages:

1. The prevention of the injuring of the edge of the barrel chamber by the firing pin.

2. To secure a good ejection of the cartridge case.

3. To assure an easy and certain operation of the extractor.

4. To realize a simple and strong construction.

The'edge of the barrel chamber is protected from having the firing pin driven against it by an appropriate abutment limiting the travel of the striker during the firing. The striker, or a piece firmly attached to it, abuts against a fixed piece of the weapon, for instance against the breech or a piece firmly attached thereto, in such a way that when the breech bolt recoils relatively to the breech, the striker may effect a further sliding in the bolt.

The aforesaid arrangement.is combined with an extractor located in the front part of the breech. bolt and engaging the rim of the cartridge at a point diametrically opposite to the firing pin, so that the cartridge case is ejected as soon as it is out of the barrel chamber by the combined effects of the extractor and firing pin.

The invention will be more particularly described with reference to the accompanying drawings in which through the breech end of a gun embodying 7 the invention;

position of the striker during the firing;

' Fig. 4 is a similar view showing the position of the parts when the cartridge case is being ejected; and

Fig. 5 is a fragmentary view of the extractor showing its position when it is not retaining a cartridge.

In the Figures 1 and 2 the striking is accomplished by means of a firing pin 1 arranged at the front part of the breech bolt 2 and on which the extremity 3 of the striker 4 acts. This striker slides in the bolt 2.

, The arrangement shown in Fig. 1 applies particularly to ordinary rifles in which the cooking is accomplished by hand after each shot. In this figure the striker 4 is firmlying projection 10 of the striker, adapted to v be caught by the sear, coming against an abutment 11 passing through the receiver 7. This receiver is shaped as in Fig. 1 by a prolongation of the barrel 9.

It is quite evident that when firing the striker 4 is stopped before it has performed its full travel in the breech bolt, that is before its end 3 has come against the plug 12 disposed at the front end of the bolt 2.

This plug 12 is disposed at the front end of the bolt 2 so that it provides a recess for the cartridge rim. The firing pin 1 slides in a slot of this plug 12. The plug is fastened in the bolt by a pin which limits the movement of the firing pin.

This plug 12 is also provided with a recess in which is pivoted a part 14 of an extractor located in the top front part of the breech bolt. In Figs. 1 to 4 the nose 15 of this extractor may be seen retaining the rim 16 of the cartridge case 17. Fig. 3 shows thebreech bolt when recoiling. This movement may be effected by hand in the rifle shown in Fig. 1 or automatically in the rifle presented in Fig'. 2.

As soon as the breech bolt begins its recoiling movement, the firing pin pushes against the bottom of the case 17, as thelat- I ter is drawn out of the chamber by the'extractor 14, and the striker resting onsaid firing pin is moved with it in the recoihng its end 3 comes against the rear face of the plug 12, and consequently pushes-the firing pin 1 forward. The pressure of the spring 18 has thus a tendency to turn the case 17 about the nose of extractor 14 in the direction of the arrow X-of Fig. 4. These movements are revented as long as the case 17 remains in tiie chamber. As soon as the recoil of the bolt is sufiicient, the case comes out of the chamber and is perfectly ejected by the firing pin.

- The extractor 14 is actuated by an extractor pin 19 acted upon by a spring 20 located in a hole of the bolt 2. According to the position of th 'extractor, the extractor pin 19 acts upon the rear of this extractor, eiher with the surface 21 or the surface 22 at its front end, these surfaces acting upon the said rear face of the extractor at points located at different distances from its axis 23. This action takes place in such a way that when the extractor turns in order to engage th rim 15 of the case 17, the surface 21 of the front end of the extractor pin acts on it at a relatively short distance from its axis 23 (see Fig. 5). When the extractor 14 has passed over the rim 16, the surface 22 of the extractor pin acts on the extractor and makes its grasp more powerful.

While the invention has been illustrated in what are considered its best applications, it may have other embodiments without departing from its spirit and is not therefore limited to the structures shown in the draw ings.

What I claim is:

1. A small arm for rim fire cartridges, comprising a barrel, a receiver, a breech bolt, a striker sliding in said breech bolt, a firing pin actuated" by said striker, and means for limiting the displacement of said striker during the firing before the latter has accomplished its full travel in the breech bolt.

-2. A small arm for rim fire cartridges,

In a weaponsuch as illus-' comprising a barrel, a receiver, a breech bolt, a striker sliding in said breech bolt, a

adapted to limit the displacement of said striker before the latter has accomplished its full travel in the breech bolt, said bolt permitting the further movement of said striker toward said firing pin to move the latter further forward with relation to the bolt to cause the ejection of theicartridge case after the bolt has been moved on recoil so that said I ment with said abutment. 7

4. small arm for fire cartridges, comprising a barrel, a receiver, a breech bolt, a str ker sliding in said breech bolt, a firing pin actuated. by said striker, an extracting device, and an abutment carried by said receiver and adapted to limit the displacement of said striker before the latter has accomplished its full travel in the breech bolt, said bolt permitting further movement of said striker toward saidfiring pin to. move the latter further forward with relation to the bolt to cause the ejection of the cartridge case after the bolt has been moved on recoil so that said striker is removed from engagement with said abutment, said firing pin engaging the cartridge case at one side and the extracting device engaging said cartridge case substantially diametrically opposite to the point of engagement of said firing pin.

5. A small arm comprising 'a barrel, a receiver, a breech bolt, an extractor device movably mounted at the forward end of the breech bolt, and a reciprocating device tending to push the extractor device into engagement with the cartridge case, said extractor device and said reciprocating device being relatively constructed so that the point of engagement of said reciprocating device with said extractor device moves on the surface of said reciprocating device so as to increase the leverage of the reciprocating device after the cartridge case has "been engaged by the extractor, device.

6. A small arm comprising a barrel, 9. receiver, a breech bolt sliding in said receiver,

an extractor device pivoted at the forward end of said bolt, a plunger sliding in and guided in a'recess in said bolt, a spring ushing said plunger against said extractor device and urging the latter against the cartridge case, said plunger and said extractor device having their points of engagement at different points on the plunger according tosthe receiver, a breech striker is-removed from engageposition of the extractor device, whereby the slot, a firing pin sliding in said slot, a pin leverage of the plunger increases after the securing said plug in said bolt, said firing pin cartridge case has been engaged by the exhaving a groove receiving the last mentioned tractor device. pin whereby the movements of the firing pin 15 7. A small arm comprising in combinawith relation to the plug are limited.

tion, a barrel, a breech, a breech bolt sliding In testimony whereof I afiix my signature in said breech, a striker sliding in said bolt, in presence of two witnesses.

a plug disposed in the front end of said bolt, JOSEPH DECLAYE. said bolt extending beyond the forward end Witnesses: of said plug whereby a recess for the rim of ALFRED VANDER HAG-HEN,

the cartridge is provided, said plug having a CH. MEROHIF. 

